About address allocating

[Haisang Wu]

hi,
  I think /56 is a reasonable idea. In fact, as a pTLA of 
6bone, CERNET has allocated block of /56 in the address space
of 3ffe:3200::/24. 
  But 200::/35 is "formal" addresses, anyway, I think maybe we 
need a draft or something else to explain this. 
  best
                  Wu haisang  
 
>  In your previous mail you wrote:
> 
> => we'd like to get a /48, ISPs would like to give a /64 to us:
>  - /48 seems a bit too large for a default allocation size
>  - /64 is unusable when you need subneting
> then the current idea, as presented yesterday here in Budapest
> at the RIPE meeting, is to introduce "small site" which get
> /56 (on byte boundary, large enough for up to 256 subnetworks or
> a few levels of hierarchy).
> Then /56 will become the default allocation size in RIR
> allocation & assignment document.
> 
> Regards
> 
> Francis.Dupont@enst-bretagne.fr
>